ASTM D1068-03

Standard Test Methods for Iron in Water

SCOPE
1.1 These test methods cover the determination of iron in water. Procedures are given for determining total iron, dissolved iron, and ferrous iron. Undissolved iron may be calculated from the total iron and dissolved iron determinations. The test methods are given as follows:RangeSectionsTest Method A-Atomic Absorption, Direct0.1 to 5.0 mg/L7 to 15Test Method C-Atomic Absorption, Graphite Furnace5 to 100 μg/L16 to 24Test Method D-Photometric Bathophenanthroline g/L40 to 1000 μg/L25 to 36
1.2 It is the user's responsibility to ensure the validity of these test methods to waters of untested matrices.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific hazards statements are given in Note 3, Note 5, and Note X1.1.
1.4 Two former photometric test methods were discontinued. See Appendix X2 for historical information.

General Information

• Status: Historical
• Publication Date: 09-Jan-2003
• ICS: 13.060.50 - Examination of water for chemical substances
• Technical Committee: D19 - Water
• Drafting Committee: D19.05 - Inorganic Constituents in Water

Relations

• Replaces: ASTM D1068-96 - Standard Test Methods for Iron in Water
• Effective Date: 10-Jan-2003
• Replaced By: ASTM D1068-05 - Standard Test Methods for Iron in Water
• Effective Date: 01-Jun-2005
• Referred By: ASTM D3645-15 - Standard Test Methods for Beryllium in Water
• Effective Date: 10-Jan-2003
• Referred By: ASTM D3557-17 - Standard Test Methods for Cadmium in Water
• Effective Date: 10-Jan-2003
• Referred By: ASTM D4309-18 - Standard Practice for Sample Digestion Using Closed Vessel Microwave Heating Technique for the Determination of Total Metals in Water
• Effective Date: 10-Jan-2003
• Referred By: ASTM D858-17 - Standard Test Methods for Manganese in Water
• Effective Date: 10-Jan-2003
• Referred By: ASTM D8006-16 - Standard Guide for Sampling and Analysis of Residential and Commercial Water Supply Wells in Areas of Exploration and Production (E&P) Operations
• Effective Date: 10-Jan-2003
• Referred By: ASTM D1886-14(2021)e1 - Standard Test Methods for Nickel in Water
• Effective Date: 10-Jan-2003
• Referred By: ASTM D1691-17 - Standard Test Methods for Zinc in Water
• Effective Date: 10-Jan-2003
• Referred By: ASTM D4922-21 - Standard Test Method for Determination of Radioactive Iron in Water
• Effective Date: 10-Jan-2003
• Referred By: ASTM D1971-16(2021)e1 - Standard Practices for Digestion of Water Samples for Determination of Metals by Flame Atomic Absorption, Graphite Furnace Atomic Absorption, Plasma Emission Spectroscopy, or Plasma Mass Spectrometry
• Effective Date: 10-Jan-2003
• Referred By: ASTM D857-17 - Standard Test Method for Aluminum in Water
• Effective Date: 10-Jan-2003
• Referred By: ASTM D4042-93(2019) - Standard Test Method for Sampling and Testing for Ash and Total Iron in Steel Mill Dispersions of Rolling Oils
• Effective Date: 10-Jan-2003
• Referred By: ASTM D3559-15 - Standard Test Methods for Lead in Water
• Effective Date: 10-Jan-2003
• Referred By: ASTM D4382-18 - Standard Test Method for Barium in Water, Atomic Absorption Spectrophotometry, Graphite Furnace
• Effective Date: 10-Jan-2003

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn
Contact ASTM International (www.astm.org) for the lastest information
Designation:D1068–03
Standard Test Methods for
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Iron in Water
This standard is issued under the fixed designation D1068; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
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1. Scope * Applicable Methods of Committee D-19 on Water
D3370 Practices for Sampling Water from Closed Con-
1.1 These test methods cover the determination of iron in
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duits
water. Procedures are given for determining total iron, dis-
2
D3558 Test Methods for Cobalt in Water
solved iron, and ferrous iron. Undissolved iron may be
2
D3559 Test Methods for Lead in Water
calculated from the total iron and dissolved iron determina-
D3919 Practice for Measuring Trace Elements in Water by
tions. The test methods are given as follows:
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Graphite Furnace Atomic Absorption Spectrophotometry
Range Sections
D4841 Practice for Estimation of Holding Time for Water
Test MethodA—AtomicAbsorption, 0.1 to 5.0 mg/L 7 to 15
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Direct
Samples Containing Organic and Inorganic Constituents
Test Method C—AtomicAbsorption, 5 to 100 µg/L 16 to 24
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D5810 Guide for Spiking into Aqueous Samples
Graphite Furnace
D5847 Practice for the Writing Quality Control Specifica-
Test Method D—Photometric 40 to 1000 µg/L 25 to 36
3
Bathophenanthrolineµ g/L
tions for Standard Test Methods for Water Analysis
E 60 Practice for Photometric and Spectrophotometric
1.2 It is the user’s responsibility to ensure the validity of
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Methods for Chemical Analysis of Metals
these test methods to waters of untested matrices.
E275 Practice for Describing and Measuring Performance
1.3 This standard does not purport to address all of the
of Ultraviolet, Visible, and Near Infrared Spectrophotom-
safety concerns, if any, associated with its use. It is the
4
eters
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
3. Terminology
bility of regulatory limitations prior to use. Specific hazards
3.1 Definitions:—Fordefinitionsoftermsusedinthesetest
statements are given in Note 3, Note 5, and Note X1.1.
methods, refer to Terminology D1129.
1.4 Two former photometric test methods were discontin-
3.2 Definitions of Terms Specific to This Standard:
ued. See Appendix X2 for historical information.
3.2.1 total recoverable iron—an arbitrary analytical term
2. Referenced Documents
relating to the recoverable forms of iron that are determinable
by the digestion method which is included in these test
2.1 ASTM Standards:
2
methods.
D858 Test Methods for Manganese in Water
2
D1066 Practice for Sampling Steam
4. Significance and Use
2
D1129 Terminology Relating to Water
4.1 Ironisthesecondmostabundantmetallicelementinthe
D1192 Specification for Equipment for Sampling Water
2
earth’s crust and is essential in the metabolism of plants and
and Steam in Closed Conduits
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animals. If presented in excessive amounts, however, it forms
D1193 Specification for Reagent Water
2
oxyhydroxide precipitates that stain laundry and porcelain.As
D1687 Test Methods for Chromium in Water
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a result, the recommended limit for iron in domestic water
D1688 Test Methods for Copper in Water
2
supplies is 0.3 mg/L. These test methods are useful for
D1691 Test Methods for Zinc in Water
2
determining iron in many natural waters.
D1886 Test Methods for Nickel in Water
D2777 Practice for Determination of Precision and Bias of
5. Purity of Reagents
5.1 Reagent grade chemicals shall be used in all tests.
Unlessotherwiseindicated,itisintendedthatallreagentsshall
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These test methods are under the jurisdiction of ASTM Committee D19 on
conform to the specifications of the Committee on Analytical
Water and are the direct responsibility of Subcommittee D19.05 on Inorganic
Constituents in Water.
Current edition approved Jan. 10, 2003. Published January 2003. Originally
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approved in 1949. Last previous edition approved in 1996 as D1068–96. Annual Book of ASTM Standards, Vol 03.05.
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Annual Book of ASTM Standards, Vol 11.01. Annual Book of ASTM Standards, Vol 03.06.
*ASummary of Changes section appears at the end of this standard.
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D1068–03
Reagents of the American Chemical Society, where such Methods D1886), chromium (Test Methods D1687), cobalt
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specifications are available. Other grades may be used, (Test Methods D3558), copper (Test Methods D1688), lead
provided it is first asce
...